单选题
1分
About one million Americans are diagnosed annually with skin cancer.
参考答案: A
参考解析: 每年约有100万美国人被诊断出患有皮肤癌。every year"每年”。severely“严重地”，例如：The car was severely damaged in the accident．这辆汽车在车祸中受到严重损坏。actively“积极地”，如：I actively participated in the movement．我积极地投入到这次活动中。 every month“每个月”。只有every year意思上和annually最接近。
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